1.an operation, a key switch, simplifying the process of starting the device to facilitate the tedious use of the operator; 2.SCM control adjustment: 50 sets of commonly used welding parameters can be stored to facilitate reuse. 3.using CCD image monitoring system, easy to observe and accurate positioning. 4.the core parts of imported ceramic condenser cavity, corrosion resistance, high temperature, long service life; 5.Adopt the world's most advanced automatic shading system to eliminate eye irritation at work; 6.user-friendly design, ergonomic, long-term work is not fatigue; 7.small size and light weight: reduce the working space, easy to transport and move.